?? activitymain.java
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package com.ex06_3.activity;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;public class ActivityMain extends Activity { OnClickListener listener1 = null; OnClickListener listener2 = null; Button button1; Button button2; static final int REQUEST_CODE = 1; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); listener1 = new OnClickListener() { public void onClick(View v) { Intent intent1 = new Intent(ActivityMain.this, Activity1.class); intent1.putExtra("activityMain", "數(shù)據(jù)來(lái)自activityMain"); startActivityForResult(intent1, REQUEST_CODE); } }; listener2 = new OnClickListener() { public void onClick(View v) { setTitle("這是在ActivityMain"); Intent intent2 = new Intent(ActivityMain.this, Activity2.class); startActivity(intent2); } }; setContentView(R.layout.main); button1 = (Button) findViewById(R.id.button1); button1.setOnClickListener(listener1); button2 = (Button) findViewById(R.id.button2); button2.setOnClickListener(listener2); setTitle("ActivityMain"); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (requestCode == REQUEST_CODE) { if (resultCode == RESULT_CANCELED) setTitle("取消"); else if (resultCode == RESULT_OK) { String temp=null; Bundle extras = data.getExtras(); if (extras != null) { temp = extras.getString("store"); } setTitle(temp); } } }}
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